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auxdisplay: make charlcd_backlight visible to hd44780_common

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hd44780_common wants to use the charlcd_backlight function, so make it
visible.

Reviewed-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Lars Poeschel 2020-11-03 10:58:15 +01:00 committed by Miguel Ojeda
parent 45421ffefb
commit 2bf82b5a80
2 changed files with 3 additions and 1 deletions
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3
drivers/auxdisplay/charlcd.c
View File

@ -91,7 +91,7 @@ static void long_sleep(int ms)
}
/* turn the backlight on or off */
static void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on)
void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on)
{
struct charlcd_priv *priv = charlcd_to_priv(lcd);
@ -103,6 +103,7 @@ static void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on)
lcd->ops->backlight(lcd, on);
mutex_unlock(&priv->bl_tempo_lock);
}
EXPORT_SYMBOL_GPL(charlcd_backlight);
static void charlcd_bl_off(struct work_struct *work)
{

1
drivers/auxdisplay/charlcd.h
View File

@ -56,6 +56,7 @@ struct charlcd_ops {
int (*clear_display)(struct charlcd *lcd);
};
void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on);
struct charlcd *charlcd_alloc(void);
void charlcd_free(struct charlcd *lcd);